It is done in Latin communities and is hundreds of years old, it
definitely is not a fundie type thing. My guess is Harry saw a photo
of it, and really didn't understand what it was, and just guessed that
it was a fundie thing.
Your guess is wrong, crap for brains, and it wasn't in a "Latin"
community.
..
What community was it in? Do you remember the town name or the church?